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// -*- c-basic-offset: 4 -*-
/*
Rosegarden
A sequencer and musical notation editor.
This program is Copyright 2000-2008
Guillaume Laurent <glaurent@telegraph-road.org>,
Chris Cannam <cannam@all-day-breakfast.com>,
Richard Bown <bownie@bownie.com>
The moral right of the authors to claim authorship of this work
has been asserted.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#include "AudioCache.h"
#include <iostream>
//#define DEBUG_AUDIO_CACHE 1
namespace Rosegarden
{
AudioCache::~AudioCache()
{
clear();
}
bool
AudioCache::has(void *index)
{
return m_cache.find(index) != m_cache.end();
}
float **
AudioCache::getData(void *index, size_t &channels, size_t &frames)
{
if (m_cache.find(index) == m_cache.end())
return 0;
CacheRec *rec = m_cache[index];
channels = rec->channels;
frames = rec->nframes;
return rec->data;
}
void
AudioCache::addData(void *index, size_t channels, size_t nframes, float **data)
{
#ifdef DEBUG_AUDIO_CACHE
std::cerr << "AudioCache::addData(" << index << ")" << std::endl;
#endif
if (m_cache.find(index) != m_cache.end()) {
std::cerr << "WARNING: AudioCache::addData(" << index << ", "
<< channels << ", " << nframes
<< ": already cached" << std::endl;
return ;
}
m_cache[index] = new CacheRec(data, channels, nframes);
}
void
AudioCache::incrementReference(void *index)
{
if (m_cache.find(index) == m_cache.end()) {
std::cerr << "WARNING: AudioCache::incrementReference(" << index
<< "): not found" << std::endl;
return ;
}
++m_cache[index]->refCount;
#ifdef DEBUG_AUDIO_CACHE
std::cerr << "AudioCache::incrementReference(" << index << ") [to " << (m_cache[index]->refCount) << "]" << std::endl;
#endif
}
void
AudioCache::decrementReference(void *index)
{
std::map<void *, CacheRec *>::iterator i = m_cache.find(index);
if (i == m_cache.end()) {
std::cerr << "WARNING: AudioCache::decrementReference(" << index
<< "): not found" << std::endl;
return ;
}
if (i->second->refCount <= 1) {
delete i->second;
m_cache.erase(i);
#ifdef DEBUG_AUDIO_CACHE
std::cerr << "AudioCache::decrementReference(" << index << ") [deleting]" << std::endl;
#endif
} else {
--i->second->refCount;
#ifdef DEBUG_AUDIO_CACHE
std::cerr << "AudioCache::decrementReference(" << index << ") [to " << (m_cache[index]->refCount) << "]" << std::endl;
#endif
}
}
void
AudioCache::clear()
{
#ifdef DEBUG_AUDIO_CACHE
std::cerr << "AudioCache::clear()" << std::endl;
#endif
for (std::map<void *, CacheRec *>::iterator i = m_cache.begin();
i != m_cache.end(); ++i) {
if (i->second->refCount > 0) {
std::cerr << "WARNING: AudioCache::clear: deleting cached data with refCount " << i->second->refCount << std::endl;
}
}
m_cache.clear();
}
AudioCache::CacheRec::~CacheRec()
{
for (size_t j = 0; j < channels; ++j)
delete[] data[j];
delete[] data;
}
}
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